JP2013529274A - 燃焼エンジンにおける湿度センサのモニタリングの方法及び装置であって、NOx、ラムダ(lambda)、及び/又は酸素センサ等のエンジンにおける他のセンサの酸素測定を用いる方法及び装置 - Google Patents
燃焼エンジンにおける湿度センサのモニタリングの方法及び装置であって、NOx、ラムダ(lambda)、及び/又は酸素センサ等のエンジンにおける他のセンサの酸素測定を用いる方法及び装置 Download PDFInfo
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- JP2013529274A JP2013529274A JP2013508498A JP2013508498A JP2013529274A JP 2013529274 A JP2013529274 A JP 2013529274A JP 2013508498 A JP2013508498 A JP 2013508498A JP 2013508498 A JP2013508498 A JP 2013508498A JP 2013529274 A JP2013529274 A JP 2013529274A
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- Prior art keywords
- sensor
- oxygen
- computer
- nox
- humidity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000001301 oxygen Substances 0.000 title claims abstract description 51
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 51
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000005259 measurement Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 11
- 239000000446 fuel Substances 0.000 claims abstract description 9
- 238000004590 computer program Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 239000003570 air Substances 0.000 description 9
- 238000004364 calculation method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000004422 calculation algorithm Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- -1 or lambda Inorganic materials 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/10—Measuring moisture content, e.g. by measuring change in length of hygroscopic filament; Hygrometers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0418—Air humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/146—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an NOx content or concentration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
2 中間冷却器
3 EGR冷却器
4 排気パイプ
5 タービン
6 コンプレッサ
7 湿度センサ
8 センサ
20 補正及びフィルタリング
21 センサ又はモデルの情報
22 制御手段
23 遮断条件
24 制御ブロック
25 差分チェック
26 参照される酸素値の設定
27 算出湿度値への換算
28 測定された湿度値との比較
29 警告又はエラー信号
Claims (12)
- 燃焼エンジン・システムにおける湿度センサをモニタリングするための方法において、前記湿度センサによって測定される周囲湿度と、前記エンジン・システムにおける少なくとも一つのその他のセンサの酸素測定値から決定される周囲湿度とを比較するステップを有することを特徴とする方法。
- 前記比較が、前記少なくとも一つのその他のセンサの酸素信号測定値のオフセットを用いて、前記その他のセンサのドリフト又はオフセットが前記周囲湿度の変化に関連するという状態においてなされることを特徴とする、請求項1に記載の方法。
- 前記状態が、前記エンジン・システムの燃料遮断の状態であることを特徴とする、請求項2に記載の方法。
- 前記少なくとも一つのその他のセンサが、NOx、ラムダ(lambda)、及び/又は酸素センサを含むことを特徴とする、請求項1に記載の方法。
- 前記比較のステップの前に、酸素測定から決定される前記周囲湿度は、前記エンジンの特定の状態に依存したセンサ情報に従って補正され、及びフィルターがかけられ、前記センサ情報は、例えば、燃料量、空気量、ガス圧、エンジン速度、温度であることを特徴とする、請求項1乃至4のいずれか1項に記載の方法。
- 燃焼エンジン・システムにおける湿度センサをモニタリングするための装置において、前記エンジン・システムは、前記湿度センサ、吸気システム及び排気システム、前記吸気システム又は前記排気システムにおいて酸素を測定する少なくとも一つのその他のセンサを備え、当該装置は、請求項1乃至5のいずれか1項に記載の方法を実行するための手段を備えることを特徴とする装置。
- 前記吸気システム(1)が中間冷却器(2)の排出部に接続され、前記排気システム(4)が少なくとも一つのタービン(5)の吸入部に接続され、前記湿度センサ(7)がコンプレッサの吸入部又は前記吸気パイプ(1)に設置され、前記少なくとも一つのその他のセンサが前記中間冷却器(2)の排出部、又は吸気部(1)、又は前記少なくとも一つのタービン(5)の排出部に設置され、当該装置は、請求項1乃至3のいずれか1項に記載の方法を実行するための手段を備えることを特徴とする、請求項6に記載の装置。
- 前記エンジン・システムが、排気パイプ(4)と吸気パイプ(1)及び前記中間冷却器(2)の排出部との間にEGR冷却器(3)を備え、前記少なくとも一つのその他のセンサが、前記EGR冷却器(3)の排出部、又は前記中間冷却器(2)の排出部、又は、前記吸気部(1)、又は前記少なくとも一つのタービン(5)の排出部に設置されていることを特徴とする、請求項7に記載の装置。
- 前記少なくとも一つのタービン(5)が、2ステージ・タービンであることを特徴とする、請求項7に記載の装置。
- 前記少なくとも一つのその他のセンサが、NOx、又はラムダ(lambda)、及び/又は酸素センサを含むことを特徴とする、請求項6乃至9のいずれか1項に記載の装置。
- コンピュータ・プログラムにおいて、コンピュータ上で当該プログラムが実行される際、請求項1乃至5のいずれか1項に記載の全てのステップを実行するよう適合されたコンピュータ・プログラム・コード手段を備えることを特徴とする、コンピュータ・プログラム。
- コンピュータ読取り可能な記録媒体において、自身に記録されたプログラムを備え、前記コンピュータ読取り可能な記録媒体は、前記プログラムがコンピュータ上で実行される際、請求項1乃至5のいずれか1項に記載の全てのステップを実行するよう適合されたコンピュータ・コード手段を備えることを特徴とする、コンピュータ読取り可能な記録媒体。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10162087.0A EP2385236B1 (en) | 2010-05-06 | 2010-05-06 | Method and device for monitoring a humidity sensor in a combustion engine, using oxygen measurement of other sensors in the engine, such as nox, lambda and/or oxygen sensors |
EP10162087.0 | 2010-05-06 | ||
PCT/EP2011/057189 WO2011138387A1 (en) | 2010-05-06 | 2011-05-05 | Method and device for monitoring a humidity sensor in a combustion engine, using oxygen measurement of other sensors in the engine, such as nox, lambda and/or oxygen sensors |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013529274A true JP2013529274A (ja) | 2013-07-18 |
JP5917494B2 JP5917494B2 (ja) | 2016-05-18 |
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Family Applications (1)
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JP2013508498A Active JP5917494B2 (ja) | 2010-05-06 | 2011-05-05 | 燃焼エンジンにおける湿度センサのモニタリングの方法及び装置であって、NOx、ラムダ(lambda)、及び/又は酸素センサ等のエンジンにおける他のセンサの酸素測定を用いる方法及び装置 |
Country Status (9)
Country | Link |
---|---|
US (1) | US9772273B2 (ja) |
EP (1) | EP2385236B1 (ja) |
JP (1) | JP5917494B2 (ja) |
CN (1) | CN102939452B (ja) |
AU (1) | AU2011249778B2 (ja) |
BR (1) | BR112012028454B1 (ja) |
ES (1) | ES2689729T3 (ja) |
RU (1) | RU2569937C2 (ja) |
WO (1) | WO2011138387A1 (ja) |
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2011
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- 2011-05-05 AU AU2011249778A patent/AU2011249778B2/en active Active
- 2011-05-05 WO PCT/EP2011/057189 patent/WO2011138387A1/en active Application Filing
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US20090254245A1 (en) * | 2008-04-04 | 2009-10-08 | Gm Global Technology Operations, Inc. | Humidity sensor diagnostic systems and methods |
JP2009264341A (ja) * | 2008-04-28 | 2009-11-12 | Toyota Motor Corp | 内燃機関 |
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KR101478633B1 (ko) * | 2013-12-23 | 2015-01-06 | 주식회사 케이피씨 | 가스배관의 수분 검출장치 및 방법 |
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RU2569937C2 (ru) | 2015-12-10 |
BR112012028454B1 (pt) | 2020-11-10 |
EP2385236A1 (en) | 2011-11-09 |
BR112012028454A2 (pt) | 2016-07-19 |
ES2689729T3 (es) | 2018-11-15 |
US20130118232A1 (en) | 2013-05-16 |
AU2011249778A1 (en) | 2013-01-10 |
EP2385236B1 (en) | 2018-07-18 |
CN102939452B (zh) | 2016-03-02 |
JP5917494B2 (ja) | 2016-05-18 |
WO2011138387A1 (en) | 2011-11-10 |
RU2012152468A (ru) | 2014-06-20 |
CN102939452A (zh) | 2013-02-20 |
US9772273B2 (en) | 2017-09-26 |
AU2011249778B2 (en) | 2014-10-23 |
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